On Saryrn, at least, a Fungi + a CoF would put you 30-40k in the hole
Really, I guess I'd buy a good haste item and spend the rest on decent enough armor to get me into the 50's. If you plan on taking your time levelling, everything will be cheaper by the time you reach 50 and need to upgrade (haste items hold their value over time, hence my saying to get one now). If you plan on PLing to 60 by Saturday, just buy equipment as if you're a lvl 60 shadowknight shopping.